37:12 Because I mean, back way back in the day in the, you know, forties, fifties, and sixties, you know, cars were really only designed for 3, 4 years max. If you got, like, 50,000 miles on a car, that was a lot of miles for a car back then.
49:26 Right. So not, one thing you can do to increase, reliability is do what's called an EPSA, electronics parts stress analysis, where you take every single part and you say, here's the max rated from the customer or not sorry, the manufacturer. Here's a resistor. It says that it can handle 1 watt. What am I running this resistor at?